using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

namespace AutoMapper

{

    public static class AutoMapperExtension

    {

        /// <summary>

        /// 单个对象映射

        /// </summary>

        /// <typeparam name="TSource">源对象</typeparam>

        /// <typeparam name="TDestination">目标对象</typeparam>

        /// <param name="source"></param>

        /// <returns></returns>

        public static TDestination MapTo<TSource, TDestination>(TSource source)

        {

            if (source == null) return default(TDestination);

            Mapper.Initialize(x => x.CreateMap(typeof(TSource), typeof(TDestination)));

            return Mapper.Map<TDestination>(source);

        }

        /// <summary>

        ///  集合列表类型映射

        /// </summary>

        /// <typeparam name="TSource">源对象</typeparam>

        /// <typeparam name="TDestination">目标对象</typeparam>

        /// <param name="source"></param>

        /// <returns></returns>

        public static List<TDestination> MapToList<TSource, TDestination>(this IEnumerable<TSource> source)

        {

            if (source == null) return default(List<TDestination>);

            Mapper.Initialize(x => x.CreateMap(typeof(TSource), typeof(TDestination)));

            return Mapper.Map<List<TDestination>>(source);

        }

    }

}

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

namespace AutoMapper

{

   public  class UserModel

    {

        /// <summary>

        /// 会员编号

        /// </summary>

        public Int32 UserId { get; set; }

        /// <summary>

        /// 会员名称

        /// </summary>

        public String Name { get; set; }

    }

}

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

namespace AutoMapper

{

    /// <summary>

    /// 新会员表

    /// </summary>

    public class UserNewModel

    {

        /// <summary>

        /// 会员编号

        /// </summary>

        public Int32 UserId { get; set; }

        /// <summary>

        /// 会员名称

        /// </summary>

        public String Name { get; set; }

    }

}

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

namespace AutoMapper

{

    public class Extension

    {

        /// <summary>

        /// 将user转成userNew

        /// </summary>

        public static void Model()

        {

            var user = new UserModel()

            {

                UserId = ,

                Name = "王彬"

            };

            var userNew = new UserNewModel();

            //将老会员实体转成新会员实体

            var u = AutoMapperExtension.MapTo<UserModel,UserNewModel>(user);

        }

        public static void ModelList()

        {

            List<UserModel> Users = new List<UserModel>();

            var user = new UserModel()

            {

                UserId = ,

                Name = "王彬"

            };

            Users.Add(user);

            var userNew = new List<UserNewModel>();

            //将老会员实体转成新会员实体

            var ulist = AutoMapperExtension.MapToList<UserModel, UserNewModel>(Users);

        }

    }

}